Prince William County, VA Climate

Prince William, VA County has a humid subtropical climate. Summers are hot and humid with temperatures usually reaching the low to mid-90s during the day. Winters are generally mild, with average high temperatures in the upper 40s and lows in the upper 20s. Precipitation is abundant throughout the year with an average of almost 45 inches annually. Snowfall is rare and usually light, averaging around 3–4 inches per year. There can be occasional bouts of severe weather, including thunderstorms, hail, and even tornadoes. However, this is relatively infrequent compared to other areas of Virginia.

Prince William County, Virginia gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Prince William County averages 18 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 198 sunny days per year in Prince William County. The US average is 205 sunny days.

Prince William County gets some kind of precipitation, on average, 117 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 25
Rain: averages 43 inches of rain a year
Snow: averages 18 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Prince William County is 7.3 (10=best), which means it is about average compared to other places in Virginia.

8 Summer - 5.8 Winter

September, May and June are the most pleasant months in Prince William County, while January and February are the least comfortable months.

Climate	Prince William, Virginia	United States
	42.8 in.	38.1 in.
	17.6 in.	27.8 in.
	116.6 days	106.2 days
	198 days	205 days
	87.2°	85.8°
	24.7°	21.7°
	7.3	7
	4	4.3
	268 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Prince William County with an average high temperature of 87.2°, which ranks it as warmer than most places in Virginia. In Prince William County, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Prince William County are September, May and June.

In Prince William County, there are 25.0 days annually when the high temperature is over 90°, which is hotter than most places in Virginia.

January has the coldest nighttime temperatures for Prince William County with an average of 24.7°. This is about average compared to other places in Virginia.

In Prince William County, there are 94.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Virginia.

In Prince William County, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Virginia.

The humidity can be uncomfortably heavy or close in Prince William County during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Prince William County.

May is the wettest month in Prince William County with 4.3 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 42.8 inches in Prince William County means that it is drier than most places in Virginia.

May is the rainiest month in Prince William County with 11.7 days of rain, and October is the driest month with only 7.9 rainy days. There are 116.6 rainy days annually in Prince William County, which is about average compared to other places in Virginia. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 17.6 inches in Prince William County means that it is snowier than most places in Virginia. January is the snowiest month in Prince William County with 6.4 inches of snow, and 5 months of the year have significant snowfall.

Reviews for Prince William

See all ()

Write a Review

Start Your Review of Prince William

Jobs